Homework Help: physics

Posted by Katelynn S on Thursday, January 12, 2012 at 1:50am.

While racing on a flat track, a car rounds a curve of 56 m radius and instantaneously experiences a centripetal acceleration of 36 m/s2. How fast was the car going?
I know the answer i s45 I just need to know why ASAP!!!!!!!!!!!!!!!!!!!!

physics - Steve, Thursday, January 12, 2012 at 1:00pm
a = v^2/r
ar = v^2
56*36 = v^2
2016 = v^2
v = 44.9

Answer this Question

Related Questions

Physics - Racing on a flat track, a car going 32 m/s rounds a curve 56 m in ...
physics - racing on a flat track, a car going 32 m/s rounds a curve 56m in ...
physics - A flat (unbanked) curve on a highway has a radius of 230.0 . A car ...
physics - meerany A flat (unbanked) curve on a highway has a radius of 220.0 Ill...
physics - A 605-kg racing car completes one lap in 14.3 s around a circular ...
Physics - A 640-kg racing car completes one lap in 14.3 s around a circular ...
physics - A 640-kg racing car completes one lap in 14.3 s around a circular ...
physics - A 625-kg racing car completes one lap in 14.3 s around a circular ...
Physics - A 14,300 N car traveling at 46.0 km/h rounds a curve of radius 2.30 x ...
Physics - Hi everyone, finished all my utexas physics homework, save this last ...

For Further Reading

First Name:
School Subject:
Answer: